Question about Sanyo DS27910 27" TV

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Picture is too wide, how can I adjust the width?

I took the back off but couldn't find a pot labled width or height like tvs used to have.

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Can't you set/adjust that on menu settings? If not, and no adjustable knob inside for width adjustment. You are now dealing its adjustment with MCU, or its eeprom ic. Check its required power supply it should be within spec. Better to have an schematic if you deals within its electronics parts.

Posted on Apr 20, 2009

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I have a Sylvania 6427 17


It sounds that the width of the picture to your TV is more than normal. There are two reasons for this fault. If the width adjustment data value in its service menu mode has been misaligned or the output DC voltage from the main power regulator is more than normal. You can determine which among the condition stated above is now effected to your TV
Just look at the picture. If the width and height of the picture is seem to be more than normal, make sure that the power regualtor section circuit has the fault. If the dimension of the picture is affected to its width only, [excess than normal] the data value with service mode should be checked.
Also note the position of the picture. If the picture position has moved so much than normal, ether towards left in this case, you have to adjust the picture position. Anyway, it will be best to contact any experienced service technician, since, service mode entry and data adjustment are skilled work.

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Hello, I need some more details so I can help, whether the image has grown in height or width? Or that the picture has grown at once, even height and width together? In addition I need the TV model, it says on the sticker at the back of the TV.

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1 Answer

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Hi,
One of the following may be misaligned. i) Aspect ratio of your TV may be wrongly selected. i.e. select 4:3 in place of 16:9 or vice versa with your Remote . ii) Picture Width or Height may be wrongly adjusted. With the help of Remote, select MENU go to PICTURE option, reduce height or width which ever is needed.
Have a nice day Rating the solution is highly appreciated.

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1 Answer

My akai tv is set on full screen


You should have a button on the remote that came with the TV labeled: format , ratio , wide , picture , somthing like that, different brands of TVs call it different things and I am not familiar with the Akai branded TVs, but when you find it just press it as many times as needed to make the picture look as you want it to.
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1 Answer

Picture image does not look full when showing people


There is a service menu adjustment. I have seen several of these sets with bad components in the horizontal width control circuit. maybe your other set has a width problem. put both on the same channel. like cnn with the ticker on the bottom. what is the difference in size?
the width adj. procedure is: with the set off. use the remote, enter. MENU>5>VOL+>POWER . the set will come on in the service mode. then with the menu adj. buttons you can step threw the service menu to H.WIDTH adj. until full picture. also VERT. HEIGHT. when you are done adjusting make sure you press the mute button and watch the word WRITE flash from green to red or you won't save your adjustments.

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1 Answer

VIDEO TAPE WHEN PLAYED WAVE AT THE TOP OF THE TV SCREEN


This is a common problem usually seen when playing copy protected tapes. The part of the picture affected is normally off the top of the screen. Sometimes the problem is also due to the VCR itself and differences in tapes. It's also possible for the TV itself to be causing this, although you would probably also notice this flag-waving (that's what it's called) on regular TV viewing if that were true.

Sometimes increasing the height of the picture can push the affected area off the top again. But this can also cause you to lose part of the picture you want. Also, the height adjustment may be difficult to find as it's not something normally used. On some TV's it's a small pot somewhere on the board, but most newer sets have electronic adjustments through a service menu that you need to know how to access.

I'd suggest trying another VCR first and play one of the tapes you know shows the trouble. That might be all it takes. Then consider trying to increase the picture height if it's just a small bit at the top of the screen.

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1 Answer

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You may be able to adjust the picture width and height if there are controls. Look at the back of the set for holes labeled V.Size and or H.Size, these are the Horizontal and Vertical size controls. You'll need a small screwdriver (3/16) to insert into the control and adjust.
If there are no controls then it may need to be serviced as there are capacitors that have failed which are causing the picture to change size.

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1 Answer

JVC AV-28WFX EUS1 unstable image


Hello, I think you have a faulty "horizontal width" or horizontal
linearity preset pot. This pot will be located on the main PCB
and you can adjust it with a small screw driver, when you do the
picture will shift from left to right or vice versa, or move back to fill each side. If it wont hold after making the adjustments then the pots ( potentiometers) need replacing, which means unsoldering them from the printed circuit board( PCB) and take them in to your local radio shop for new ones. By the way you might need 2 pots ( 1 for the WIDTH and 1 for the LINEARITY)
Good luck.

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